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Home >> Kia >> 2007 >> Rondo Base >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System (F4A42) >> VFS (Variable Force Solenoid) Valve >> Description >> VFS Control Pressure

VFS Control Pressure

VFS CONTROL PRESSURE

Input Current (mA) Control Pressure (No line pressure)
Increasing Current Decreasing Current
MAX. (Kgf/cm(1)) [Kpa] MIN. (Kgf/cm(1)) [Kpa] Δ (Kgf/cm(1)) [Kpa] MIN. (Kgf/cm(1)) [Kpa]
100 6.52 [639] 5.87 [575] [64] -
200 6.23 [611] 5.70 [559] [52] 5.43 [532]
300 5.76 [564] 5.24 [514] [50] 4.49 [484]
400 5.08 [498] 4.59 [450] [48] 4.30 [421]
500 4.24 [416] 3.78 [370] [46] 3.52 [345]
700 2.29 [224] 1.82 [178] [46] 1.51 [148]
800 1.41 [138] 0.09 [88] [50] 0.58 [57]
900 0.65 [64] 0.14 [14] [50] 0 [0]
1,000 0.24 [24] 0 [0] [24] -
1,100 0.24 [24] 0 [0] [24] -
(1) Test condition:

Ps : Supply Pressure (Ps = 7.1 ± 0.3 KGf/cm2 )
Pc : Control Pressure
Pex : Exhaust Pressure (Atmosphere pressure)
ATF : DIAMOND ATF SP-III
ATF temperature : 30 ± 3°C (86°F)
  • Coil resistance : 4.35 ± 35Ω
  • Dither Frequency : 600 ± 20Hz

In case of VFS solenoid valve, the relation between Duty and oil pressure can't be expressed.